Daclatasvir Impurity A

Chemical Name: N-[(1S)-2-Methyl-1-[[(2S)-2-[5-[4’-[2-[(2S)-2-pyrrolidinyl]-1H-imidazol-5-yl][1,1’-biphenyl]-4-yl]-1H-imidazol-2-yl]-1-pyrrolidinyl]carbonyl]propyl]carbamic Acid Methyl Ester

Smile: O=C(OC)N[C@@H](C(C)C)C(N1[C@H](C2=NC=C(C3=CC=C(C4=CC=C(C5=CN=C([C@H]6NCCC6)N5)C=C4)C=C3)N2)CCC1)=O